Has anyone managed to use Postgresql as a datasource for SSAS? The Postgresql .NET connector seems promising, but the SSAS view wizard does not seem to be able to see the tables in the database.
Try using the ODBC connector. I've had success getting other tools to connect to PG using it. The EnterpriseDB installers not only include a well packaged, working version of PG for windows, they include working, correctly installed drivers.
http://www.enterprisedb.com/products-services-training/pgdownload
try pg_bulkload for load from via c# & from mssql to pgsql
copy & bcp (ssis) for second direction (pgsql->ssas)
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It is actually possible to hack the Postgresql .NET connector and implement a "MSSQL compatibility mode", where the [ and ] around tables and schema names are removed. Using this, the list of tables does not appear in MS SSAS, but it is possible to replace them by views.
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I have a source code querying an Oracle database.
Is it possible to replace the Oracle database by a PostgreSQL database without modifying the source code ?
I thought about adding an adapter/wrapper module between my source code and the PostgreSQL db for the source code to be compatible with PostgreSQL.
Thanks
PostgreSQL is strict about ISO SQL standard implementation. Most recent Oracle versions are also compliant. Oracle usually implemented some feature long before
it was standardized therefor their dialects is slightly different.
Nowadays various SQL features have duplicate implementation in Oracle, an original one a ISO one.
Look Ora2pg, is this a Perl code which can convert a lot of Oracle code into Postgres.
Try to modify your Oracle code in Oracle database to be ISO SQL compliant, even before starting actual migration. Such a code can run on both databases without any changes.
Then you finally move from Oracle to Postgres
I'm trying to assist user who suddenly no longer is able to connect to database using PostgreSQL JDBC driver. PostgreSQL connection tab is not clickable. All of her colleagues do not have such issues. I have re-installed SQL developer several times, backed up and deleted SQL config folders from C:\users\username\appdata\roaming, re-added driver, nothing seems to change. I have limited knowledge about SQL as I don't use it and neither is there much information about this as it doesn't seem like a common issue. User uses following software:
JDK 8 -172 64 bit,
SQL Developer 17.2.0,
PostgreSQL JDBC driver 42.2.18. Added screenshot just in case. Any help would be appreciated.
What DB Management Systems does EF 4.2 Code First support?
I'd like to use Code First with MySQL and Oracle. Do I have to download extra things?
Thanks!!
It supports the most of the popular DBMS's like Oracle, MySQL, PostgreSQL and SQLite other than SQL Server. Yes you have to download database connectors for them. Here is a good tutorial to get you started.
I am having Oracle 10g installed on my laptop and have downloaded ojdbc14.jar driver for the same. The problem is, my operating system is Windows 7, and I'm not having option to create a Data Source for Oracle since I m not having oracles driver installed. I m having option to create a Data Source for SQL server 6, but I want to get connected to Oracle. Please Help.
By 'Data Sources', I'm guessing that you mean Data Sources (ODBC), under Control Panel > Administrative Tools. Is this correct?
I've set up ODBC Data Sources that connect to Oracle databases before, but to do that I've needed the Oracle client to be installed. However, if you're having the full database installed on your laptop (as your question suggests), you won't need the client - that's only used to connect to databases running on other machines. I believe the full database contains everything in the client, so you should be able to set up an ODBC Data Source pointing to the database on your laptop once the database has been installed.
The ojdbc14.jar just contains the JDBC classes to talk to an Oracle database, and only programs written in Java (and other languages that run on the JVM such as Scala, Groovy or Clojure) can use it. This jar on its own not enough to be able to set up an ODBC data source.
Oracle currently has 1 version that is certified for windows 7. That version is 11.2. They have indicated that they plan to certify 10.2.0.5 if this happens there will likely be a patch that will be needed.
This is probably why the Data Source does not work, either ODBC or OLEDB.
Another possibility is that you have installed the 32bit version of Oracle and your OS is 64bit then you would need to use the 32bit Data Source administrative tools.
I have figured out the solution for my problem. All that I needed to do is put ojdbc14.jar file in my class path and then I was able to use it. Though by doing so, I needed to make some change in the code. I was no more able to use Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") instead I needed to use Class.forName("oracle.jdbc.OracleDriver") also instead of using my data source as "jdbc:odbc:somename" I needed to use jdbc:oracle:thin:#localhost:1521:xe.
I'm in need of a functional OleDB data provider for PostgreSQL. It should be similar to the ODBC provider for MySQL. See http://dev.mysql.com/downloads/connector/odbc/5.1.html
The postgres software catalog has some providers on there.
dotConnect for PostgreSQL (from Devart) offers a pretty good one. It is fast and works. The free version will give you your basic ADO.net support, the pay offers everything else. ODBC doesn't have a free version.
http://www.devart.com/dotconnect/postgresql/
edit
Adding the direct link to the ODBC connector as it is on a separate page.
https://www.devart.com/odbc/postgresql/
If you want to check the last version of ODBC for PosgreSQL :
http://www.postgresql.org/ftp/odbc/versions/
Enter in the "msi" folder for the installer.
But be careful, when you are using ODBC, there is a 32bits and a 64bits version. So choose the right one.